Mitsubishi QJ71DN91 User Manual page 61

3 SPECIFICATIONS
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(24) H/W Test Item Display Area (address 062E
The test item numbers currently in operation during the hardware test and
communication test are stored.
Table 3.25 Contents of the hardware test item display
Test item number
0000 Before test starts
H
0001 ROM check
H
0002 RAM check
H
0003 Microcomputer check
H
0004 CAN controller check
H
FFFF Test completed normally
H
Table 3.26 Contents of communication test item display
Test item number
0000 Before test starts
H
Node number duplicate
0001
H
check
0002 Communication check
H
FFFF Test completed normally
H
(25) H/W Test Result Storing Area (address 062F
The results of the hardware test and communication test are stored.
Error code
0000 No error
H
60AA RAM error
H
61AA ROM error
H
62AA CAN controller check error
H
Network power supply
63AA
H
error
70AA
H
71AA
H
72AA Microcomputer error
H
73AA
H
74AA
H
Contents
Before the hardware test starts
Testing if the ROM is normal
Testing if the RAM is normal
Testing if the Microcomputer is normal
Testing if the CAN controller is normal
Hardware test was executed and completed normally
Contents
Before the communication test starts
Checking if there is another node with the same node
number as that of the local node
Checking if communication with one or more nodes in the
network is available
Communication test was executed and completed normally
Table 3.27 Contents of hardware test result
Contents
Hardware test was completed normally.
This is a hardware error. Report the error symptoms to the
nearest service center, dealer or branch office.
Verify that power is supplied to the network.
This is a hardware error. Report the error symptoms to the
nearest service center, dealer or branch office.
MELSEC-Q
/1582)
H
Processing
Processing
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H
Error handling
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